version: '3.8'

services:
  db:
    image: mariadb:10.6 # pinned to stable release
    container_name: db
    volumes:
      - ./data/mysql:/var/lib/mysql/
      - ./data/backup:/mnt/backup
    restart: on-failure:3
    environment:
      MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD}
    healthcheck:
      test: ["CMD", "/usr/local/bin/healthcheck.sh", "--connect"]
      interval: 15s #interval for the first and subsequent checks
      timeout: 10s
      retries: 3

networks:
  db_default:
    external: true